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How CVE-2025-48368 Works
CVE-2025-48368 is a DOM-based Cross-Site Scripting (XSS) vulnerability in Group-Office versions before 6.8.119 and 25.0.20. Attackers can inject malicious JavaScript payloads into vulnerable DOM parameters, which are then executed in the victim’s browser. The exploit occurs when user-supplied input is improperly sanitized before being written to the DOM, allowing arbitrary script execution. This can lead to session theft, phishing attacks, or unauthorized actions under the victim’s account. The vulnerability requires user interaction, such as clicking a malicious link.
DailyCVE Form
Platform: Group-Office
Version: <6.8.119, <25.0.20
Vulnerability: DOM-based XSS
Severity: Medium
Date: 05/29/2025
Prediction: Patch expected by 06/15/2025
What Undercode Say:
Exploitation
1. Craft Payload:
<script>alert(document.cookie)</script>
2. Inject via URL:
https://victim-groupoffice.com/page?param=<script>malicious_code</script>
3. Trigger Execution: Victim clicks the link, payload executes.
Protection
- Update Immediately: Upgrade to Group-Office 6.8.119 or 25.0.20.
2. Input Sanitization:
echo htmlspecialchars($user_input, ENT_QUOTES, 'UTF-8');
3. Content Security Policy (CSP):
Content-Security-Policy: default-src 'self'; script-src 'unsafe-inline' 'unsafe-eval'
Detection
1. Scan with Nuclei:
nuclei -t xss-detection.yaml -u target.com
2. Manual Testing:
fetch('/vulnerable-endpoint?test=<img src=x onerror=alert(1)>')
Analytics
- Attack Vector: User-interactive (click-jacking).
- Exploitability: Moderate (requires social engineering).
- Impact: Session compromise, data theft.
Mitigation Code
// Sanitize DOM inputs
function sanitize(input) {
return input.replace(/<script.?>.?<\/script>/gi, '');
}
Log Monitoring
grep -i "script" /var/log/groupoffice/access.log
Patch Verification
curl -I https://target.com/ | grep "X-XSS-Protection"
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
